package com.example.developerlab;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.fragment.app.Fragment;

/**
 * A simple {@link Fragment} subclass.
 * Use the {@link FragmentPermission#newInstance} factory method to
 * create an instance of this fragment.
 */
public class FragmentPermission extends Fragment {
    private static final int PERMISSION_REQUEST_CAMERA = 0;

    // TODO: Rename parameter arguments, choose names that match
    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
    private static final String ARG_PARAM1 = "param1";
    private static final String ARG_PARAM2 = "param2";

    // TODO: Rename and change types of parameters
    private String mParam1;
    private String mParam2;

    public FragmentPermission() {
        // Required empty public constructor
    }

    /**
     * Use this factory method to create a new instance of
     * this fragment using the provided parameters.
     *
     * @param param1 Parameter 1.
     * @param param2 Parameter 2.
     * @return A new instance of fragment FragmentPermission.
     */
    // TODO: Rename and change types and number of parameters
    public static FragmentPermission newInstance(String param1, String param2) {
        FragmentPermission fragment = new FragmentPermission();
        Bundle args = new Bundle();
        args.putString(ARG_PARAM1, param1);
        args.putString(ARG_PARAM2, param2);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getArguments() != null) {
            mParam1 = getArguments().getString(ARG_PARAM1);
            mParam2 = getArguments().getString(ARG_PARAM2);
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        useCamera();
        return inflater.inflate(R.layout.fragment_permission, container, false);
    }


    private void useCamera() {
        if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.CAMERA)
                == PackageManager.PERMISSION_GRANTED) {
            toast(R.string.camera_permission_granted);
        } else {
            requestCameraPermission();
        }
    }

    private void requestCameraPermission() {
        if (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(),
                Manifest.permission.CAMERA)) {
            toast(R.string.camera_permission_rationale);
        }
        requestPermissions(new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CAMERA);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
                                           @NonNull int[] grantResults) {
        if (requestCode == PERMISSION_REQUEST_CAMERA) {
            if (grantResults.length == 1 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                toast(R.string.camera_permission_granted);
            } else {
                toast(R.string.camera_permission_denied);
            }
        }
    }

    private void toast(int msgId) {
        Toast.makeText(getContext(), getResources().getString(msgId), Toast.LENGTH_SHORT).show();
    }
}